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Flow rate volumeter for house hold appliances connected to water supply, holds impeller in axially movable manner so that it can be shifted and rotation of impeller can be blocked during back flow
Flow rate volumeter for house hold appliances connected to water supply, holds impeller in axially movable manner so that it can be shifted and rotation of impeller can be blocked during back flow
The impeller (16) inside the volumeter, is held in axially movable manner such that it can be moved to a position in which its rotation is blocked by a pawl and catch (22,24) during back flow.
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